Traveling around big cities by taxi can cost a lot of money, but it's usually to take the underground train to most places.
-How clean and tidy your bedroom is! -Thank you. It ________ every day:
-What are you going to do this Sunday? -I ________ yet.
—When did you ____ the top of the mountain? —At 11;45 a.m.
—Have you found your watch? —No, it is ______to see anything in the hole.
—Are there any trees on _____ sides of the new street? —Yes, there are.